Fuel-mixing device for internal-combustion engines.



W. F. & R. L. JENKINS. EUEI. MIXING DEVICE EOE INTERNAL GoMBUsTIoN ENGINES.

APPLICATION FILED SBPT.25, 1913.

l1,132,351 i Patented Mar.16,1915.

NVENTURS ATTORNEYS STATES PATENT OFFICE.

.'wiIfroN F.. JENKINS AND nonn'r L. JENKINS, or nIcHMoND, VIRGINIA. i

' ruim-MIXING' nEvIcE Fon .INTERNAL-coMBUsTIoN ENGINES.

To flammea@ mam,

. Beit known that we, WnmoN F. JENKINS and ROBERT L. JENKINS, citizens of the United States, and residents of Richmond,

in. the county of Henrico and State of Virengines, and it consists in the combinations,

,constructions and arrangements hereinde- .scribed and claimed. 1 An lobject of our invention is to provide f. a-'dev'ice bymeans of which the fuel of in'- ternal combustion enginesm'ay bethoroughlyl mixed before entering the combustion cham- I. l-A further object'of our invention is to providea devicewhich may be readily appliedl to the intake manifold of internal combustion lengines on any standard'make.

. of automobile without `necessitatingany change whatever in the number or shape of the parts of the apparatus to whichJ the device is-.to be applied: l "e A further object of vour linvention is to provide a device for mixing theA fuel which -may be us .inconnection with any suitvable form of carbureter and which results in such a complete mixture of the air and fuelthat much less fuel is-required for a given amount of pbwer than where themixing deviceis not used.

A further object of our invention. is to provide a device which is sim'ple in its nat rek-cheap to manufacture, and 'which wil -not easily get out of order.

Our invention is illustrated in the acvcompanyi-ng drawings. forming part of this 4application in Which- "Fi re 1 is a side view of an engine provvvide with ourimproved mixing device, Fig. 2 is a section through the endof the intake manifold showing the mixing device inI position, and Figi 3 is a section along the line 3 3 of Fig. 2. ef Referring now to the drawings 1 denotes in general an engine having 'the usual intake V manifold 2 leading to the cylinders. The lower end of this manifold is provided with the usualange 3,'which is connected to a similar flange 4 on the outlet lpipe 5 leading from thecarbureter 6. A gasket 7 is provided between the anges 3 and 4, shown i' Specication of Letters Patent. 'l

"cylindrical member 9 o hubs 15 and 16 of Patented Mar. 16, 19152 l Appueation mea september 25,1918. serial No. 291,801.

in Fig. 2, and these anges are held together by means of bolts 8. The construction thus far is ordinary and forms no part of our invention `except in so far as the parts coperate tohold the mixing device, as'will be explained.

. The mixing device proper consists of a metal or other suitable material .which has an uppier tapered end 10 provided with-perforations 10x. It will be noted that these 'perforations are at right angles to theaxis of the'cylinder 9.

A. downwardly extending integral portion 11 is provided'with similar perforations 10c also extendingat right angles t vthe axis of the cylinder. AThis inner part 11 is propurpose of affording addi.-

vided for the tional means o escapefor the fuel, and while at the same time taking up lessroom than if 'extended on beyond the en d of the portion 10. At each end of the cylindrical ortion 9 is disposed a .spider 12 which 1s heldin place by screws 13 extending vthrough the wall ofthe cylindrical portion.

Disposed between the spiders is a shaft v14 whose ends are secured in the spiders 12. Rotatably mounted lo n lthe shaft 14 are the propellers whose blades- 15x and 16c respect1vely.are turnedin opposite directions. That is to say, the lower propeller will revolve inonedirection and the upper propeller in another. The propeller hubs arey spaced from the spiders by washers 17, while a central 4washer 18 is disposed between the hubs 15 'and 16.

From the foregoing description of the various parts of the devicethe operation thereof may be readily understood.

In attaching the mixing device the bolts are withdrawn fromY the flanges 3 and 4 and the mixing device is thrust up intov the lower end of the intake manifold 2, the flange 9c beingv seated against the packing 7 on one side and being arranged to bear against the upper vflange 3 on the other. The flange 9x is made thin so as to permit the packing 7 to assume substantially. its normal position when the bolts 8 are again tightened' up. When the 'device is attached it has the appearance and position shown in Fig. 2.

Now when the engine is cranked and starts up the suction will draw the fuel through the carbureter in the 'usual manner.

. It will then pass through the outlet pipe into lio site directions, .as heretofore stated, thus thoroughly mixing the fuel and air. The mixture will then pass through the openings 10". The openings in the portion 1l being directed toward each other will cause a further mixture of the fuel, while the openings which are in the conical part 10 will permit the fuel to be forced into contact with the L,walls of the manifold 2 thus mixing the fuel on this side. rl`he result is that the fuel is thoroughly mixed and when ignited will be almost entirely consumed.

ln actual tests we have found that fifty per cent. of fuel is saved by the device over that saved whenrthe device is used with the ordinary carbureter. The saving of `fuel is not the onlyresult of the thorough mixture of the fuel with the air. Besides giving greater power in proportion to the fuel con.l

sumed thecombustion is more complete, and therefore there is very little carbon deposit in the cylinder, or in the other working parts of the engine. rlhis results in greater elficiency of the engine and requires less tearing down of the motor to rid the same of carbon than when the mixer is not/used.

lntake manifolds are ordinarily made in one of five sizes and the mixing device would be made in five sizes to fit any size manifold. The attachment of the device to the engineJ only requires a few moments Work and when it is attached the device has the same appearance as it had before. Furthermore the mixing device being on the inside of the intake manifoldfrequires no extra room at all.

We claim:

l. lln a fuel mixing device for internal incassi end and being provided with a closure at 'the other end having a series of perforations, the

axes of the perforations being at right angles to the axis of the casing, av pair of propellers rotatably mounted within said. casing between said` closure and the open end of the casing, the blades of said propellers being inclined in opposite directions, and the axes of the propellers being coincident with the longitudinal axis of the casing.

2. The combination with a carbureter outlet pipe having an end ange, of an intake pipe having an end flange arranged to register with the first named end flange, means for securing said end flanges together, a cylindrical casing arranged to enter the end ofsaid intake pipe, said casing having an end flange arranged to extend between said anges, means for clamping said lianges together, an integral closure at one end Vof said perforated casing, said closure being pro'- vided with a series of perforations, the axes of said last named perforations being at right angles to the axis of the casing, bearing members carried bly said cylindrical casing on the interior thereof, a central shaft carried by said bearing members, and a pair of propellers rotatably mounted on said central shaft, the blades of one of said propellers being inclined in an .opposite direction from the blades of the other propeller.

WILTON F. JENKINS. RBERT L. JENKlNS. Witnesses: y

J'. D. YOAKLEY, L. A. STANmY. 

